* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #071923;
  --panel: #142735;
  --cyan: #18c8e7;
  --text: #ffffff;
  --muted: #b7c9d2;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}


/* HEADER */

.header {
  height: 74px;
  padding: 0 7%;

  display: flex;
  align-items: center;
  justify-content: space-between;

  border-bottom: 1px solid rgba(255,255,255,.08);

  background: #091c27;
}

.logo {
  font-size: 24px;
  font-weight: 900;
  letter-spacing: 1px;
}

.logo span {
  color: var(--cyan);
}

.header-btn {
  background: var(--cyan);
  color: #071923;

  text-decoration: none;

  padding: 12px 22px;

  border-radius: 999px;

  font-weight: 800;
}


/* HERO */

.hero {
  min-height: 570px;

  display: flex;
  align-items: center;

  padding: 70px 8%;

  background:
    radial-gradient(
      circle at 75% 30%,
      rgba(24,200,231,.16),
      transparent 35%
    ),
    linear-gradient(
      135deg,
      #0a2532,
      #071923
    );
}

.hero-content {
  max-width: 650px;
}

.eyebrow {
  letter-spacing: 3px;
  color: #65d9ed;

  font-size: 13px;
  font-weight: 700;
}

.hero h1 {
  font-size: clamp(46px,7vw,82px);
  line-height: .98;

  margin: 20px 0;
}

.hero h1 span {
  color: var(--cyan);
}

.hero-text {
  color: var(--muted);

  font-size: 19px;
  line-height: 1.6;

  margin-bottom: 30px;
}

.primary-btn {
  display: inline-block;

  background: var(--cyan);
  color: #06202b;

  text-decoration: none;

  font-weight: 900;

  padding: 16px 25px;

  border-radius: 12px;
}


/* SERVICES */

.services {
  padding: 70px 8%;
  background: #0b202c;
}

.services h2 {
  font-size: 40px;
  margin: 12px 0 35px;
}

.cards {
  display: grid;

  grid-template-columns:
    repeat(3,1fr);

  gap: 20px;
}

.card {
  padding: 30px;

  border: 1px solid #274654;

  border-radius: 18px;

  background: #102632;
}

.icon {
  font-size: 32px;

  margin-bottom: 18px;
}

.card h3 {
  margin-bottom: 10px;
}

.card p {
  color: var(--muted);

  line-height: 1.5;
}


/* POPUP */

.overlay {
  position: fixed;

  inset: 0;

  background:
    rgba(5,18,25,.72);

  backdrop-filter: blur(8px);

  display: flex;

  align-items: center;
  justify-content: center;

  padding: 22px;

  z-index: 1000;
}

.offer-modal {
  width: min(665px,100%);

  background: #152836;

  border: 3px solid var(--cyan);

  border-radius: 38px;

  padding: 94px 36px 44px;

  position: relative;

  text-align: center;

  box-shadow:
    0 0 50px
    rgba(24,200,231,.16);
}


/* CLOSE BUTTON */

.close-btn {
  position: absolute;

  right: 25px;
  top: 25px;

  width: 75px;
  height: 75px;

  border: 0;

  border-radius: 50%;

  background: #f14b4e;

  color: white;

  font-size: 43px;

  line-height: 1;

  cursor: pointer;
}


.offer-eyebrow {
  letter-spacing: 3px;

  color: #65d9ed;

  font-size: 13px;

  font-weight: 700;

  margin-bottom: 40px;
}


.offer-modal h2 {
  font-size: 62px;

  line-height: 1.03;

  margin-bottom: 40px;

  font-weight: 900;
}

.offer-modal h2 span {
  color: #56d8ef;
}


/* EXTRA OFFER */

.extra-offer {
  border: 1px solid #3d5c69;

  border-radius: 21px;

  padding: 30px 15px;

  margin: 0 2px 34px;
}

.extra-offer strong {
  font-size: 39px;
}

.extra-offer p {
  color: #bfd0d8;

  font-size: 28px;

  margin-top: 12px;
}


/* TEXT */

.offer-copy {
  color: #c0d0d7;

  font-size: 21px;

  line-height: 1.65;

  margin-bottom: 30px;
}


/* WHATSAPP */

.whatsapp-btn {
  display: block;

  text-decoration: none;

  background: #0eb6d4;

  color: white;

  border-radius: 20px;

  padding: 25px 18px;

  font-size: 25px;

  font-weight: 900;

  line-height: 1.2;
}


/* MOBILE */

@media (max-width: 600px) {

  .header {
    height: 64px;
    padding: 0 18px;
  }

  .logo {
    font-size: 19px;
  }

  .header-btn {
    padding: 9px 15px;
    font-size: 13px;
  }


  .hero {
    min-height: 480px;
    padding: 55px 25px;
  }

  .hero h1 {
    font-size: 48px;
  }

  .hero-text {
    font-size: 16px;
  }


  .services {
    padding: 55px 25px;
  }

  .services h2 {
    font-size: 32px;
  }

  .cards {
    grid-template-columns: 1fr;
  }


  .overlay {
    padding: 22px;
  }

  .offer-modal {
    border-radius: 30px;

    padding: 96px 24px 32px;
  }


  .close-btn {
    width: 62px;
    height: 62px;

    right: 18px;
    top: 18px;

    font-size: 36px;
  }


  .offer-eyebrow {
    font-size: 11px;

    letter-spacing: 2.5px;

    margin-bottom: 42px;
  }


  .offer-modal h2 {
    font-size: 48px;

    margin-bottom: 38px;
  }


  .extra-offer {
    padding: 25px 10px;

    margin-bottom: 32px;
  }

  .extra-offer strong {
    font-size: 30px;
  }

  .extra-offer p {
    font-size: 22px;
  }


  .offer-copy {
    font-size: 17px;

    line-height: 1.7;
  }


  .whatsapp-btn {
    font-size: 20px;

    padding: 22px 10px;

    border-radius: 18px;
  }

}